摘要
通过系统调查与分析,探索了小麦黄矮病的发生程度与产量的关系,确定了其发病程度与分级标准,研究出了小麦黄矮病的经济阈值。
Via investigation and analysis, it discussed relation between occurrence of wheat yellow dwarf and yield. Morbidity and grades standard was determined as well as wheat dwarf economic threshold.
出处
《天津农业科学》
CAS
2007年第2期57-58,共2页
Tianjin Agricultural Sciences
关键词
小麦
黄矮病
经济阈值
wheat
yellow dwarf
economic threshold